--- configure.orig	2018-08-26 17:44:54 UTC
+++ configure
@@ -18923,8 +18923,8 @@ fi
 
 WARN_CFLAGS=
 test "X${GCC}" = Xyes && {
-  CFLAGS="$CFLAGS -Wno-format-contains-nul -fno-strict-aliasing"
-  WARN_CFLAGS="$CFLAGS "`echo -Wall -Werror -Wcast-align -Wmissing-prototypes \
+  CFLAGS="$CFLAGS -fno-strict-aliasing"
+  WARN_CFLAGS="$CFLAGS "`echo -Wall -Wcast-align -Wmissing-prototypes \
 	-Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \
 	-Wstrict-aliasing=3 -Wextra -Wno-cast-qual`
 }